Electro-optical apparatus and electronic apparatus

ABSTRACT

An optical axis of a light emitting element is inclined against a normal line of a light emitting surface of the light emitting element to a central side of a display area in a row direction according to positions of subpixels in the row direction, and the optical axis is inclined against the normal line of the light emitting surface to the central side of the display area in a column direction according to the positions of the subpixels in the column direction. A range of inclination of the optical axis is different in the row direction and the column direction. In the row direction and the column direction, the subpixels are disposed such that color filters of the same color are arranged in a direction in which the range of inclination becomes larger, and color filters of colors which are different from each other are arranged in another direction.

CROSS REFERENCE TO RELATED APPLICATION

This application is a divisional application of U.S. application Ser.No. 15/422,780, filed Feb. 2, 2017, the contents of which areincorporated herein by reference.

BACKGROUND 1. Technical Field

The present disclosure relates to technical fields of an electro-opticalapparatus and an electronic apparatus.

2. Related Art

In recent years, a head-mounted display in a type of guiding image lightfrom an electro-optical apparatus to the pupil of an observer using anOrganic Light Emitting Diode (OLED) as a light emitting element has beenproposed as an electronic apparatus, such as a head-mounted display,which enables a virtual image to be formed. For example, in ahead-mounted display disclosed in JP-A-2009-145620, a see-throughoptical system is used which overlaps image light with external light.

In order to display color image light in the head-mounted display, adisplay panel which includes color filters disclosed in, for example,JP-A-2001-126864 is used. In JP-A-2001-126864, the color filters aredisposed right over light emitting positions of the display panel.Therefore, viewing angle characteristics of the display panel aresecured around a direction perpendicular to a display surface of thedisplay panel. The reason for this is that a using method is assumed inwhich the display panel is viewed from a front surface.

In order to use the display panel disclosed in JP-A-2001-126864 in thehead-mounted display and to reduce a size of the head-mounted display,it is necessary to reduce a size of the display panel. However, in acase where the size of the display panel is reduced, it is necessary toincrease viewing angles of pixels which are positioned on the outer sideof the display area. However, in a display panel according to therelated art, color filters are disposed right over the light emittingpositions, and thus there is a limit to increase the viewing angles. Asa result, it is difficult to secure excellent viewing anglecharacteristics.

SUMMARY

An advantage of some aspects of the embodiment is that anelectro-optical apparatus and an electronic apparatus including theelectro-optical apparatus are provided in which it is possible toimprove viewing angle characteristics even in a case where a size of adisplay panel is reduced.

According to an aspect of the embodiment, there is provided anelectro-optical apparatus including a plurality of subpixels each ofwhich is arranged in a first direction of a display area and a seconddirection which is a direction intersecting with the first direction,each of the plurality of subpixels includes a light emitting element,and a color filter, the plurality of subpixels includes color filters ofdifferent colors, and have different display colors corresponding to thecolor filters, the plurality of subpixels includes light emittingelements in which optical axes of the light emitting elements areinclined against respective normal lines of light emitting surfaces ofthe light emitting elements to a central side of the display areaaccording to respective positions of the subpixels, ranges, in which theoptical axes of the light emitting elements are inclined, are differentin the first direction and the second direction, and, in the firstdirection and the second direction, the plurality of subpixels aredisposed such that color filters of the same color are arranged in onedirection in which a range in the ranges is large, and color filters ofcolors which are different from each other are arranged in anotherdirection.

According to the aspect, the electro-optical apparatus includes theplurality of subpixels that are arranged in a first direction of thedisplay area and a second direction which is a direction intersectingwith the first direction, for example, in a row direction and a columndirection. The light emitting element of each of the plurality ofsubpixels includes an optical axis which is inclined to a central sideof the display area against a normal line of the light emitting surfaceof the light emitting element according to a position of each of thesubpixels. For example, when viewed from a center of the display area ina certain row, a light emitting element of the subpixel, which ispositioned on the outer side of the row, has the optical axis which isinclined to the central side of the display area. In addition, forexample, when viewed from a center of the display area in a certaincolumn, a light emitting element of the subpixel, which is positioned onthe outer side of the column, has the optical axis which is inclined tothe central side of the display area. A range, in which the optical axesof the light emitting elements included in the plurality of subpixelsare inclined, is different, for example, in the row direction and thecolumn direction. The plurality of subpixels are disposed such thatcolor filters of the same color are arranged in a direction, in whichthe range of inclination becomes larger, in the directions. Even thoughthe optical axes of the light emitting elements of the subpixels, whichare positioned on the outer side in the direction, are largely inclinedfrom the center of the display area in the direction, the color filtersof the same color are disposed to be arranged in the direction.Therefore, an inclined ray is not influenced by a color filter ofanother color, and viewing angle characteristics are improved.

In the electro-optical apparatus according to the aspect, in theplurality of subpixels includes color filters in which central positionsin the another direction may be deviated from respective centralpositions of the light emitting surfaces of the light emitting elementsin the another direction. According to the aspect, the color filters ofcolors, which are different from each other, are disposed to be arrangedin another direction. However, the color filters are deviated to thecentral side of the display area in another direction corresponding tothe inclinations of the optical axes. Therefore, it is possible toadjust influence of the color filters of the respective colorscorresponding to the inclined ray, and thus the viewing anglecharacteristics are improved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include color filters disposed to overlap adjacentcolor filters in the another direction in a plan view, and disposed tohave different widths of overlap in a plan view according to thepositions of the subpixels in the another direction. According to theaspect, the color filters of different colors are disposed to overlapwith each other in another direction in a plan view. Therefore, it ispossible to adjust a degree of the influence of the color filters of therespective colors corresponding to the inclined ray by a degree ofoverlap of the color filters. As a result, the viewing anglecharacteristics are improved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, with regard to inclination, a width in which thegreen color filter overlaps the red color filter in a plan view maybecome smaller as the inclination in the order direction becomes larger.According to the aspect, with regard to the inclination of the opticalaxes, as the inclination of the order direction becomes larger, a redcolor ray is shifted to a short wavelength side. However, since a widthwhich functions as the green color filter becomes narrower, the quantityof light of a green color ray is suppressed. As a result, a chromaticitydeviation is suppressed, and thus the viewing angle characteristics areimproved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, with regard to inclination, a width in which thegreen color filter overlaps the red color filter in a plan view maybecome larger as the inclination in a direction reverse to the orderdirection becomes larger. According to the aspect, with regard to theinclination of the optical axes, as the inclination between the orderdirection and the reverse direction becomes larger, a green color ray isshifted to the short wavelength side. However, since a width whichfunctions as the green color filter becomes wider, the quantity of lightof the green color ray increases. As a result, the chromaticitydeviation is suppressed, and thus the viewing angle characteristics areimproved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, with regard to inclination, a width in which thegreen color filter overlaps the blue color filter in a plan view maybecome smaller as the inclination in a direction reverse to the orderdirection becomes larger. According to the aspect, with regard to theinclination of the optical axes, as the inclination between the orderdirection and the reverse direction becomes larger, a blue color ray isshifted to the short wavelength side. However, a width which functionsas the blue color filter becomes wider, the quantity of light of theblue color ray increases. As a result, the chromaticity deviation issuppressed, and thus the viewing angle characteristics are improved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, with regard to inclination, a width in which thered color filter overlaps the blue color filter in a plan view maybecome smaller as the inclination in a direction reverse to the orderdirection becomes larger. According to the aspect, with regard to theinclination of the optical axes, as the inclination between the orderdirection and the reverse direction becomes larger, the blue color rayis shifted to the short wavelength side. However, since a width whichfunctions as the blue color filter that overlaps the red color filterbecomes wider, the quantity of light of the blue color ray increases. Asa result, the chromaticity deviation is suppressed, and thus the viewingangle characteristics are improved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, with regard to inclination, a width in which thered color filter overlaps the green color filter in a plan view maybecome larger as the inclination in a direction reverse to the orderdirection becomes larger. According to the aspect, with regard to theinclination of the optical axes, as the inclination between the orderdirection and the reverse direction becomes larger, the blue color rayis shifted to the short wavelength side. However, since a width whichfunctions as the blue color filter that overlaps the green color filterbecomes wider, the quantity of light of the blue color ray increases. Asa result, the chromaticity deviation is suppressed, and thus the viewingangle characteristics are improved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, with regard to inclination, a width in which theblue color filter overlaps the green color filter in a plan view maybecome larger as the inclination of the order direction becomes larger.According to the aspect, with regard to the inclination of the opticalaxes, as the inclination of the order direction becomes larger, the bluecolor ray is shifted to the short wavelength side. However, since awidth which functions as the blue color filter that overlaps the greencolor filter becomes wider, the quantity of light of the blue color rayincreases. As a result, the chromaticity deviation is suppressed, andthus the viewing angle characteristics are improved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, with regard to inclination, a width in which theblue color filter overlaps the red color filter in a plan view maybecome smaller as the inclination in a direction reverse to the orderdirection becomes larger. According to the aspect, with regard to theinclination of the optical axes, as the inclination between the orderdirection and the reverse direction becomes larger, an extractionefficiency of the red color ray is lowered. However, since a width whichfunctions as the red color filter that overlaps the blue color filterbecomes wider, the quantity of light of the red color ray increases. Asa result, the chromaticity deviation is suppressed, and thus the viewingangle characteristics are improved.

In the electro-optical apparatus according to the aspect, the pluralityof subpixels may include subpixels repeatedly disposed in order of a redcolor filter, a green color filter, and a blue color filter in theanother direction, and, as the inclination becomes larger, a width inwhich the red color filter overlaps the color filter of another colorover the red subpixel in a plan view may be small. According to theaspect, even in the case where the red color ray is shifted to the shortwavelength side as the inclination of the optical axis becomes larger,the width which functions as the red color filter becomes wider, andthus the quantity of light of the red color ray increases. As a result,the chromaticity deviation is suppressed, and thus the viewing anglecharacteristics are improved.

Subsequently, according to another aspect of the embodiment, there isprovided an electronic apparatus including the electro-optical apparatusaccording to the aspect of the embodiment. There is provided theelectronic apparatus, which has excellent viewing angle characteristicsand high image quality, using the electro-optical apparatus whichincludes light emitting elements such as OLEDs.

BRIEF DESCRIPTION OF THE DRAWINGS

The embodiment will be described with reference to the accompanyingdrawings, wherein like numbers reference like elements.

FIG. 1 is a diagram illustrating a concept of an electronic apparatusaccording to an embodiment.

FIG. 2 is a diagram illustrating an internal structure of the electronicapparatus according to the embodiment.

FIG. 3 is a diagram illustrating an optical system of the electronicapparatus according to the embodiment.

FIG. 4 is a diagram illustrating disposition of subpixels in a displayarea of an electro-optical apparatus according to the embodiment.

FIG. 5 is a sectional view taken along line V-V of FIG. 4.

FIG. 6 is a diagram illustrating an angle of inclination of a principalray in a column direction (Y direction) of the display area.

FIG. 7 is a diagram illustrating an angle of inclination of theprincipal ray in a row direction (X direction) of the display area.

FIG. 8 is a diagram illustrating a positional relationship between eachsubpixel and each color filter in the column direction (Y direction) ofthe display area.

FIG. 9 is a diagram illustrating the positional relationship between redsubpixel and red color filter in the row direction (X direction) of thedisplay area.

FIG. 10 is a diagram illustrating an overlap between color filtersaccording to a comparative example.

FIG. 11 is a diagram illustrating the overlap between the color filtersaccording to the embodiment.

FIG. 12 is a diagram illustrating an example of a width of the overlapbetween the color filters according to the embodiment.

FIG. 13 is a table illustrating an example of the width of the overlapbetween the color filters according to the embodiment.

FIG. 14 is a graph illustrating a relationship between a spectrum ofinternally-emitting light of a light emitting element in a red subpixel,efficiency for each wavelength according to a resonance structure, and aspectrum of light which is finally irradiated from the red subpixelafter the internally-emitting light is influenced by the resonancestructure.

FIG. 15 is a graph illustrating a relationship between a ray,inclination, and a wavelength in the red subpixel.

FIG. 16 is a graph illustrating the spectrums of light irradiated fromthe subpixels of the respective colors.

FIG. 17 is a graph illustrating transmittance of the color filters ofthe respective colors.

FIG. 18 is a graph illustrating the spectrums of light irradiated fromthe respective subpixels and the spectrum of light irradiated from anoverall pixel.

FIG. 19 is a graph comparing the spectrums of the principal ray, lightwhich is inclined from the principal ray by −10°, and light which isinclined from the principal ray by +10° in an upper section of thedisplay area according to the comparative example.

FIG. 20 is a graph comparing the spectrums of the principal ray, thelight which is inclined from the principal ray by −10°, and the lightwhich is inclined from the principal ray by +10° in a central section ofthe display area according to the comparative example.

FIG. 21 is a graph comparing the spectrums of the principal ray, thelight which is inclined from the principal ray by −10°, and the lightwhich is inclined from the principal ray by +10° in a lower section ofthe display area according to the comparative example.

FIG. 22 is a chromaticity diagram illustrating chromaticity of theprincipal ray, the light which is inclined from the principal ray by−10°, and the light which is inclined from the principal ray by +10° inthe upper section of the display area according to the comparativeexample.

FIG. 23 is a chromaticity diagram illustrating the chromaticity of theprincipal ray, the light which is inclined from the principal ray by−10°, and the light which is inclined from the principal ray by +10° inthe central section of the display area according to the comparativeexample.

FIG. 24 is a chromaticity diagram illustrating the chromaticity of theprincipal ray, the light which is inclined from the principal ray by−10°, and the light which is inclined from the principal ray by +10° inthe lower section of the display area according to the comparativeexample.

FIG. 25 is a graph comparing the spectrums of the principal ray, thelight which is inclined from the principal ray by −10°, and the lightwhich is inclined from the principal ray by +10° in the upper section ofthe display area according to the embodiment.

FIG. 26 is a graph comparing the spectrums of the principal ray, thelight which is inclined from the principal ray by −10°, and the lightwhich is inclined from the principal ray by +10° in the central sectionof the display area according to the embodiment.

FIG. 27 is a graph comparing the spectrums of the principal ray, thelight which is inclined from the principal ray by −10°, and the lightwhich is inclined from the principal ray by +10° in the lower section ofthe display area according to the embodiment.

FIG. 28 is a chromaticity diagram illustrating the chromaticity of theprincipal ray, the light which is inclined from the principal ray by−10°, and the light which is inclined from the principal ray by +10° inthe upper section of the display area according to the embodiment.

FIG. 29 is a chromaticity diagram illustrating the chromaticity of theprincipal ray, the light which is inclined from the principal ray by−10°, and the light which is inclined from the principal ray by +10° inthe central section of the display area according to the embodiment.

FIG. 30 is a chromaticity diagram illustrating the chromaticity of theprincipal ray, the light which is inclined from the principal ray by−10°, and the light which is inclined from the principal ray by +10° inthe lower section of the display area according to the embodiment.

FIG. 31 is a graph comparing the spectrums of the principal ray, thelight which is inclined from the principal ray by −20°, and the lightwhich is inclined from the principal ray by +20° in a row direction ofthe display area according to the embodiment.

FIG. 32 is a chromaticity diagram illustrating the chromaticity of theprincipal ray, the light which is inclined from the principal ray by−20°, and the light which is inclined from the principal ray by +20° inthe row direction of the display area according to the embodiment.

FIG. 33 is an explanatory diagram illustrating an example of anelectronic apparatus.

FIG. 34 is an explanatory diagram illustrating another example of theelectronic apparatus.

FIG. 35 is an explanatory diagram illustrating another example of theelectronic apparatus.

DESCRIPTION OF EXEMPLARY EMBODIMENTS

FIG. 1 is a diagram illustrating a concept of an electronic apparatusaccording to an embodiment. First, the concept of the electronicapparatus will be described with reference to FIG. 1.

A head-mounted display 100 is an example of the electronic apparatusaccording to the embodiment. As illustrated in FIG. 1, the head-mounteddisplay 100 has appearance like glasses. The head-mounted display 100causes a user who wears the head-mounted display 100 to visuallyrecognize image light which forms an image, and causes the user tovisually recognize external light in a see-through manner. Thehead-mounted display 100 has a see-through function of superimposing theexternal light and image light and displaying the superimposed light,has a wide viewing angle and high performance, and is small and light.

The head-mounted display 100 includes a see-through member 101 thatcovers the front of user's eyes, a frame 102 that supports thesee-through member 101, a first built-in device section 105 a and asecond built-in device section 105 b that are appended to parts fromcover sections of both the right and left ends of the frame 102 tostring parts (temples) on the rear sides. The see-through member 101 isa thick and bent optical member (transmissive eye cover) that covers thefront of user's eyes, and is divided into a first optical part 103 a anda second optical part 103 b. A first display machine 151, in which thefirst optical part 103 a is combined with the first built-in devicesection 105 a, on the left side of FIG. 1 is a part that displays avirtual image for right eye in see-through manner, and individuallyfunctions as an electronic apparatus to which a display function isadded. In addition, second display machine 152, in which the secondoptical part 103 b is combined with the second built-in device section105 b, on the right side of FIG. 1 is a part that forms a virtual imagefor left eye in see-through manner, and individually functions as theelectronic apparatus to which the display function is added.

FIG. 2 is a diagram illustrating an internal structure of the electronicapparatus according to the embodiment. FIG. 3 is a diagram illustratingan optical system of the electronic apparatus according to theembodiment. Subsequently, the internal structure and the optical systemof the electronic apparatus will be described with reference to FIGS. 2and 3. Meanwhile, although the first display machine 151 is described asan example of the electronic apparatus in FIGS. 2 and 3, the seconddisplay machine 152 has symmetrically almost the same structure.

As illustrated in FIG. 2, the first display machine 151 includes aprojection and see-through device 70, and an electro-optical device 80(refer to FIG. 3) which is attached to one end of a lens barrel 62.Meanwhile, in FIG. 2, the electro-optical device 80 is not illustrated.The projection and see-through device 70 includes a prism 10 that is alight guide member, a light transmissive member 50, and animage-formation projection lens 30 (refer to FIG. 3) illustrated in FIG.3. In FIG. 2, the projection lens 30 is not illustrated. The prism 10and the light transmissive member 50 are integrated through bonding, andare completely fixed to, for example, a lower side of the frame 61 suchthat an upper surface 10 e of the prism 10 is connected to the lowersurface 61 e of the frame 61. The projection lens 30 illustrated in FIG.3 is stored in the lens barrel 62, and is attached to an end of theprism 10 through the lens barrel 62. The prism 10 and the lighttransmissive member 50 in the projection and see-through device 70corresponds to the first optical part 103 a in FIG. 1, and theprojection lens 30 and the electro-optical device 80 in the projectionand see-through device 70 corresponds to the first built-in devicesection 105 a in FIG. 1.

In the projection and see-through device 70, the prism 10 is anarc-shaped member that is bent along a face in a plan view, and can beseparately considered as a first prism part 11 on a central side whichis near to a nose, and a second prism part 12 on a peripheral side whichis far from the nose. The first prism part 11 is disposed on a sidewhere light is emitted, and includes a first surface S11, a secondsurface S12, and a third surface S13, which are illustrated in FIG. 3,as surfaces on sides which have optical functions. The second prism part12 is disposed on a side to which light is incident, and includes afourth surface S14 and a fifth surface S15, which are illustrated inFIG. 3, as surfaces on sides which have optical functions. Here, thefirst surface S11 is adjacent to the fourth surface S14, the thirdsurface S13 is adjacent to the fifth surface S15, and the second surfaceS12 is disposed between the first surface S11 and the third surface S13.In addition, the prism 10 has the upper surface 10 e that is adjacentfrom the first surface S11 to the fourth surface S14.

The prism 10 is formed of a resin material that shows high lightpermeability in a visible range, and is formed by, for example,injecting and solidifying a thermoplastic resin into a mold. Although amain body part 10 s of the prism 10 illustrated in FIG. 3 is formed byan integrated product, the main body part 10 s can be separatelyconsidered as the first prism part 11 and the second prism part 12. Thefirst prism part 11 enables wave guide and emission of the image light,and enables see-through of the external light. The second prism part 12enables entering and wave guide of the image light.

The light transmissive member 50 is integrally attached to the prism 10.The light transmissive member 50 is a member (auxiliary prism) whichassists the see-through function of the prism 10. The light transmissivemember 50 shows a high light permeability in the visible range, and isformed of a resin material that has approximately the same refractiveindex as the main body part 10 s of the prism 10 illustrated in FIG. 3.The light transmissive member 50 is formed through, for example, moldingof the thermoplastic resin.

As illustrated in FIG. 3, the projection lens 30 includes, for example,three lenses 31, 32, and 33 along an incident-side optical axis. Each ofthe lenses 31, 32, and 33 is a lens which is rotationally symmetrical toa central axis of a light-incident surface of the lens, and includes atleast one or more aspherical lenses. The projection lens 30 causes imagelight GL, which is emitted from the electro-optical device 80, to beincident into the prism 10, and re-forms an image on an eye EY. Theprojection lens 30 is a relay optical system for re-forming an imagecorresponding to the image light GL, which is emitted from each of thepixels of the electro-optical device 80, on an eye EY through the prism10. The projection lens 30 is maintained in the lens barrel 62illustrated in FIG. 2, and the electro-optical device 80 is attached toone end of the lens barrel 62 illustrated in FIG. 2. The second prismpart 12 of the prism 10 is connected to the lens barrel 62 whichmaintains the projection lens 30, and indirectly supports the projectionlens 30 and the electro-optical device 80.

FIG. 4 is a diagram illustrating disposition of subpixels in a displayarea of the electro-optical device 80. FIG. 5 is a sectional view takenalong line V-V of FIG. 4. As illustrated in FIG. 4, pixels 820 aredisposed in a matrix shape including M rows and N columns in theelectro-optical device 80. M and N are integer numbers which are equalto or larger than 2, and it is assumed that M=720 and N=1280 as anexample in the embodiment. Each of the pixels 820 includes threesubpixels 825. The subpixels 825 include a red subpixel 825R, a greensubpixel 825G, and a blue subpixel 825B. Each of the subpixels 825includes a light emitting element 830, and a color filter 840, throughwhich light emitted from the light emitting element 830 passes, asillustrated in FIG. 5. The color filter 840 includes a red color filter840R, a green color filter 840G, and a blue color filter 840B.

The light emitting element 830 emits white light, and an organic ELelement is used as an example of the light emitting element 830 in theembodiment. It is possible to use another LED element, a semiconductorlaser element, and the like as the light emitting element 830. The redsubpixel 825R, the green subpixel 825G, and the blue subpixel 825Brespectively include the red color filter 840R, the green color filter840G, and the blue color filter 840B. The red color filter 840R, thegreen color filter 840G, and the blue color filter 840B convert lightfrom the corresponding light emitting element 830 into red light, greenlight, and blue light, and forms the image light GL.

As illustrated in FIG. 5, the electro-optical device 80 includes asubstrate main body 215, an element substrate 216, banks 217, pixelelectrodes 210, an organic light emitting layer 211, common electrodes212, a protection layer 213, and separation sections 218 which arepositioned between the pixel electrodes 210. The separation sections 218indicate areas that are positioned between the pixel electrodes 210(between the subpixels 825R, 825G, and 825B) in a plan view and thatseparate the pixel electrodes 210. A plurality of transistors, which arenot illustrated in the drawing, are formed on the substrate main body215.

The banks 217 are disposed in a lattice shape in a direction (a columndirection (Y direction) in FIG. 4) which crosses the red color filter840R, the green color filter 840G, and the blue color filter 840B, whosecolors are different from each other, and in a direction (a rowdirection (X direction) in FIG. 4) which crosses the same-colored-colorfilters 840. In the embodiment, although the banks 217 are formed of atransparent material, such as silicon dioxide, the banks 217 may beformed of an organic material such as a photosensitive resin.

The pixel electrode 210 is formed of, for example, a light transmittingconductive material such as Indium Tin Oxide (ITO). In addition, thecommon electrode 212 functions as a semi transmission reflection layerthat has a property (semi transmitting reflectivity) of transmitting apart of light which reaches the surface and reflecting remaining light.For example, the common electrode 212 having semi transmittingreflectivity is formed by sufficiently forming a conductive material,such as an alloy which includes silver or magnesium, which has lightreflectivity, with a thin thickness. Meanwhile, although not illustratedin the drawing, a reflection layer is formed on a lower layer of thepixel electrode 210. Current is supplied form the pixel electrode 210and the common electrode 212 to the organic light emitting layer 211which is interposed between the pixel electrode 210 and the commonelectrode 212, and light is radiated from the organic light emittinglayer 211. The light radiated from the organic light emitting layer 211reciprocates between the reflection layer and the common electrode 212,passes through the common electrode 212 and is emitted to an observationside (side opposite to the substrate main body 215) after a componenthaving a specific resonant wavelength is selectively amplified. That is,a resonance structure is formed in which light emitted from the organiclight emitting layer is resonated between the reflection layer and thecommon electrode 212 which functions as the semi transmission reflectionlayer. Although not illustrated in the drawing, an optical pathadjustment layer is formed between the substrate main body 215 and thepixel electrode 210, and functions as an element for individuallysetting a resonant wavelength (display color) of the resonance structurefor each display color of the subpixel 825. Specifically, the resonantwavelength of light emitted from each subpixel 825 is set for eachdisplay color by appropriately adjusting an optical path length (opticaldistance) between the reflection layer and the common electrode 212,which forms the resonance structure according to a thickness of theoptical path adjustment layer.

As described above, the electro-optical device 80 is downsized in orderto be used in the head-mounted display 100 illustrated in FIG. 1. As aresult, it is necessary to increase viewing angles of the pixels 820which are positioned on the outer side of a display area 810 illustratedin FIG. 4. In order to increase the viewing angle, a principal ray ofthe subpixels 825, which are positioned on the outer side of the displayarea 810, is inclined. Generally, a range of inclination of theprincipal ray, that is, a range from a maximum value of an angle ofinclination of the principal ray in one direction against a normal lineof the light emitting surface of the subpixel 825 to a maximum value ofthe angle of inclination of the principal ray in another direction isdifferent in the row direction and the column direction of the displayarea.

FIG. 6 is a diagram illustrating the angle of inclination of principalray in the column direction (Y direction) of the display area 810. FIG.7 is a diagram illustrating the angle of inclination of the principalray in the row direction (X direction) of the display area 810. As beingunderstood in FIGS. 6 and 7, in the embodiment, configuration is madesuch that the range of inclination of the principal ray becomes largerin the row direction (X direction) than the column direction (Ydirection) of the display area 810 due to characteristics of the opticalsystem. In the embodiment, as illustrated in FIG. 6, in an upper sectionof the display area 810, the principal ray of the subpixels 825 isinclined against the normal line of the display area 810 by 10° to aside of the central section of the display area 810. In addition, in alower section of the display area 810, the principal ray of thesubpixels 825 is inclined against the normal line of the display area810 by 10° to the side of the central section of the display area 810.In a central section of the display area 810, the principal ray of thesubpixel 825 goes along the normal line of the display area 810. In eachposition of the display area 810, light irradiated from the subpixel 825has a spread of ±10° against the principal ray. Meanwhile, in FIG. 6, itis assumed that a side of the upper section of the display area 810 is aplus angle side and a side of the lower section of the display area 810is a minus angle side. That is, a direction in order that the red colorfilter 840R, the green color filter 840G, and the blue color filter 840Bare arranged in the column direction (Y direction) is the plusdirection, and an inverse order direction thereof is the minusdirection.

As illustrated in FIG. 7, on the right side of the display area 810, theprincipal ray of the subpixels 825 is inclined against the normal lineof the display area 810 by 20° to the side of the central section of thedisplay area 810. In addition, on the left side of the display area 810,the principal ray of the subpixels 825 is inclined against the normalline of the display area 810 by 20° to the side of the central sectionof the display area 810. In the central section of the display area 810,the principal ray of the subpixels 825 goes along the normal line of thedisplay area 810. In each of the positions of the display area 810,light irradiated from the subpixel 825 has a spread of ±20° against theprincipal ray. Meanwhile, in FIG. 7, it is assumed that the left side ofthe display area 810 is the plus angle side and the right side of thedisplay area 810 is the minus angle side.

In the head-mounted display 100, in order to visually recognize anexcellent image, it is important to secure regular or higher brightnessfor, particularly, the horizontal direction (in the drawing, the Xdirection, the row direction), which is a lateral direction in which theeyes EY are arranged, in a certain degree of angle range. The lateraldirection is a direction in which eyes move well, compared to thevertical direction (in the drawing, the Y direction and the columndirection) which is perpendicular to the lateral direction. In addition,in a case in which binocular vision is possible, pupil distances aredifferent to individual in the lateral direction, thereby requiring acertain degree of margin. Here, in the embodiment, configuration is madesuch that the range of inclination of the principal ray becomes largerin the row direction (X direction) than the column direction (Ydirection) of the display area 810.

In addition, in the embodiment, as illustrated in FIG. 4, the respectivecolor filters 840 are provided to be extended in the row direction (Xdirection) for respective pixel 820, and the color filters 840 of thesame color are disposed to be arranged in the row direction (Xdirection). In addition, in the column direction (Y direction), the redcolor filter 840R, the green color filter 840G, and the blue colorfilter 840B are disposed to be repeatedly arranged in this order.

In the embodiment, as described above, the range of inclination of theprincipal ray becomes larger in the row direction (X direction) than thecolumn direction (Y direction), and thus the color filters 840 of thesame color are disposed to be arranged in the row direction (Xdirection). Even though an optical axis of the principal ray of thelight emitting element 830 of the subpixel 825, which is positioned onthe outer side in the row direction (X direction) from the center of thedisplay area 810 in the row direction (X direction), is largely inclinedto the central side of the display area 810, the color filters 840 ofthe same color are disposed to be arranged in the row direction (Xdirection). Therefore, in the row direction (X direction), light,irradiated from the subpixel 825 which includes a color filter 840 of acertain color, is not influenced by a color filter 840 of another color.As a result, according to an angle in which the electro-optical device80 is viewed, the change in brightness and chromaticity hardly occurs.As described above, in the embodiment, the color filters 840 areprovided to be extended in the row direction (X direction) in which therange of inclination of the principal ray becomes larger, and the colorfilters 840 of the same color are disposed to be arranged in the rowdirection (X direction). As a result, it is possible to improve viewingangle characteristics in the row direction (X direction).

Subsequently, a positional relationship between each subpixel 825 andeach color filter 840 will be described. FIG. 8 is a diagramillustrating the positional relationship between each subpixel 825 andeach color filter 840 in the column direction (Y direction) of thedisplay area 810. FIG. 9 is a diagram illustrating a positionalrelationship between the red subpixel 825 and the red color filter 840Rin the row direction (X direction) of the display area 810.

As illustrated in FIG. 8, in the column direction (Y direction) of thedisplay area 810, a central position of the color filter 840 in theupper section (U) of the display area 810 is deviated from the centralposition of each subpixel 825. In addition, in the central position ofthe color filter 840 in the lower section (L) of the display area 810,the central position of the color filter 840 is deviated from thecentral position of the each subpixel 825. The central position of thecolor filter 840 in the central section (C) of the display area 810coincides with the central position of each subpixel 825.

In the upper section (U) of the display area 810, a central position CR2of the red color filter 840R in the column direction (Y direction) isdeviated from a central position CR1 of the red subpixel 825R in thecolumn direction (Y direction) to the side of the central section of thedisplay area 810. A width WRy of the red color filter 840R in the columndirection (Y direction) overlaps with a width of the color filter 840 ofanother color, which is adjacent in the column direction (Y direction),in a plan view. A central position CG2 of the green color filter 840G inthe column direction (Y direction) is deviated from the central positionCG1 of the green subpixel 825G in the column direction (Y direction) tothe side of the central section of the display area 810. A width WGy ofthe green color filter 840G in the column direction (Y direction)overlaps with a width of a color filter 840 of another color, which isadjacent in the column direction (Y direction) in a plan view. A centralposition CB2 of the blue color filter 840B in the column direction (Ydirection) is deviated from the central position CB1 of the bluesubpixel 825B in the column direction (Y direction) to a side separatedfrom the central section of the display area 810. A width WBy of theblue color filter 840B in the column direction (Y direction) overlapswith a width of a color filter 840 of another color, which is adjacentin the column direction (Y direction), in a plan view.

In the central section (C) of the display area 810, the central positionCR2 of the red color filter 840R in the column direction (Y direction)coincides with the central position CR1 of the red subpixel 825R in thecolumn direction (Y direction). The central position CG2 of the greencolor filter 840G in the column direction (Y direction) coincides withthe central position CG1 of the green subpixel 825G in the columndirection (Y direction). The central position CB2 of the blue colorfilter 840B in the column direction (Y direction) coincides with thecentral position CB1 of the blue subpixel 825B in the column direction(Y direction).

In the lower section (L) of the display area 810, the central positionCR2 of the red color filter 840R in the column direction (Y direction)is deviated from the central position CR1 of the red subpixel 825R inthe column direction (Y direction) to a side which is separated from thecentral section of the display area 810. The width WRy of the red colorfilter 840R in the column direction (Y direction) overlaps with thewidth of the color filter 840 of another color, which is adjacent in thecolumn direction (Y direction), in a plan view. The central position CG2of the green color filter 840G in the column direction (Y direction) isdeviated from the central position CG1 of the green subpixel 825G in thecolumn direction (Y direction) to a side which is separated from thecentral section of the display area 810. The width WGy of the greencolor filter 840G in the column direction (Y direction) overlaps withthe width of the color filter 840 of another color, which is adjacent inthe column direction (Y direction), in a plan view. The central positionCB2 of the blue color filter 840B in the column direction (Y direction)is deviated from the central position CB1 of the blue subpixel 825B inthe column direction (Y direction) to the side of the central section ofthe display area 810. The width WBy of the blue color filter 840B in thecolumn direction (Y direction) overlaps with the width of the colorfilter 840 of another color, which is adjacent in the column direction(Y direction), in a plan view.

In the embodiment, the central position of the subpixel 825 in thecolumn direction (Y direction) and the amount of deviation of thecentral position of the color filter 840 are different according to theposition of the subpixel. In FIG. 8, for simple explanation, the displayarea 810 is divided into three areas including the upper section (U),the central section (C), and the lower section (L). However, actually,the column direction (Y direction) is divided into further detail areas,and the amount of deviation is set according to the respective areas.

A reason that the amount of deviation between the central position ofthe subpixel 825 in the column direction (Y direction) and the centralposition of the color filter 840 is set according to the position of thesubpixel is that an angle of inclination of the principal ray isdifferent according to the position of the subpixel. As illustrated inFIG. 8, there is a case where light, which is irradiated from the redsubpixel 825R in the upper section (U), not only passes through the redcolor filter 840R but also passes through the green color filter 840G.In addition, in the embodiment, a bank 217, which separates the redcolor filter 840R from the green color filter 840G, is formed of atransparent material. Accordingly, there is a case where lightirradiated from the red subpixel 825R passes through both the red colorfilter 840R and the green color filter 840G. A degree, in which lightirradiated from a certain subpixel 825 is influenced by an arbitrarycolor filter 840, changes according to the angle of inclination of theprincipal ray. Here, in the embodiment, the amount of deviation betweenthe central position of the subpixel 825 in the column direction (Ydirection) and the central position of the color filter 840 is adjustedaccording to the position of the subpixel, thereby preventing change inbrightness and chromaticity from occurring due to an angle, in which theelectro-optical device 80 is viewed, as much as possible. That is, inthe embodiment, in a case where the amount of deviation between thecentral position of the subpixel 825 in the column direction (Ydirection) and the central position of the color filter 840 is adjusted,it is possible to adjust influence on the color filters of therespective colors according to the inclined ray, and thus it is possibleto improve the viewing angle characteristic. Meanwhile, the amount ofdeviation between the central position of the subpixel 825 and thecentral position of the color filter 840 changes according to a width ofoverlap between the color filters 840. The width of overlap between thecolor filters 840 will be described later.

As illustrated in FIG. 9, in the row direction (X direction) of thedisplay area 810, the central position of the red color filter 840Rcoincides with the central position of the red subpixel 825R in each ofthe right side (RT), the central section (C), and the left side (LT) ofthe display area 810. Meanwhile, although FIG. 9 illustrates thepositional relationship between red subpixel 825R and the red colorfilter 840R, a central position of a subpixel 825 of another colorcoincides with a central position of a color filter 840 of anothercolor. The reason for this is that the color filters 840 of the samecolor are disposed to be arranged in the row direction (X direction).With the configuration, although an optical axis of the light emittingelement 830 of the subpixel 825, which is positioned on the outer sidein the row direction (X direction) from the center of the display area810, is largely inclined, the inclined ray is not influenced by a colorfilter 840 of another color, and thus it is possible to improve theviewing angle characteristics.

Subsequently, the width of overlap between the color filters 840according to the embodiment will be described. FIG. 10 is a diagramillustrating an overlap of the color filters according to a comparativeexample. FIG. 11 is a diagram illustrating an overlap of the colorfilters according to the embodiment. FIGS. 10 and 11 illustrate asectional surface of the color filter in the column direction (Ydirection) in the upper section (U) of the display area 810 illustratedin FIG. 8.

As illustrated in FIG. 10, in the upper section (U) of the display area810, a principal ray PR of the subpixel 825 is inclined to a side of thecentral section of the display area 810 (central section). Accordingly,in a case where a position of the eye EY is a position which faces theprincipal ray PR, light irradiated from the red subpixel 825R passesthrough the red color filter 840R. In addition, light irradiated fromthe red subpixel 825R passes through an overlap part in which the redcolor filter 840R and the green color filter 840G overlap with eachother. However, in a case where the position of the eye EY is a positionwhich faces a sub ray SR inclined by, for example, 10° from theprincipal ray PR, a part of the light irradiated from the red subpixel825R passes through a part where the red color filter 840R and the greencolor filter 840G overlap with each other. However, almost the lightirradiated from the red subpixel 825R passes through the green colorfilter 840G. Particularly, in a case where the bank 217 is formed of atransparent material, the light irradiated from the red subpixel 825Rpasses through the bank 217, and passes through the green color filter840G. Therefore, in this case, light which should be originally removedas the red color is shifted to a green color side.

In addition, as described above, in a case where the resonant wavelengthof emitted light is set according to the optical path length between thereflection layer and the common electrode and the sub ray SR is inclinedagainst the normal line of the subpixel 825R as illustrated in FIG. 10,the optical path length inside the subpixel 825R becomes longer than aray along the normal line. As a result, light irradiated from thesubpixel 825R is shifted to a short-wavelength side rather than theoriginal red color.

FIG. 14 illustrates a relationship between a spectrum ofinternally-emitting light of the light emitting element 830 in the redsubpixel 825R, efficiency for each wavelength according to the resonancestructure, and a spectrum of light which is finally irradiated from thered subpixel 825R after the internally-emitting light is influenced bythe resonance structure. As being understood from FIG. 14, red lightwhich has a peak at 600 to 620 nm is acquired according to the resonancestructure.

FIG. 15 is a graph illustrating a relationship between the ray, theinclination, and the wavelength in the red subpixel 825R. FIG. 15illustrates a spectrum acquired in a case where the ray is in adirection along the normal line, a spectrum acquired in a case where theray is inclined by 10° to a side of central section of the display areaagainst the normal line, and a spectrum acquired in a case where the rayis inclined by 20° to the side of central section of the display areaagainst the normal line. As being understood from FIG. 15, it isunderstood that light irradiated from the subpixel 825R is shifted to aside of a short wavelength as the inclination becomes large.

FIG. 16 is a graph illustrating spectrums of light irradiated from thesubpixels 825 of the respective colors. As being understood from FIG.16, green light which has a peak at 510 to 530 nm is acquired in thegreen subpixel 825G, and, in addition, blue light which has a peak at450 to 480 nm is acquired in the blue subpixel 825B.

FIG. 17 is a graph illustrating transmittance of the color filters 840of the respective colors. As being understood from FIG. 17, the colorfilters 840 of the respective colors have properties of causing the peakwavelengths of light of the respective colors, illustrated in FIG. 16,to pass therethrough at high transmittance.

FIG. 18 is a graph illustrating the spectrums of light irradiated fromthe respective subpixels and a spectrum of light irradiated from anoverall pixel 820. As being understood from FIG. 18, in a case wherewavelengths at appropriate peaks are acquired in the respectivesubpixels as illustrated in FIG. 16 and the color filters of therespective colors are used as illustrated in FIG. 17, the red light, thegreen light, and the blue light are appropriately mixed, and thusappropriate white light is acquired.

Therefore, it is understood that, in a case where the principal ray andthe sub ray are inclined against the normal line of the subpixel asillustrated in FIG. 10, light irradiated in each of the subpixels isshifted and thus appropriate white light is not acquired.

A shift of irradiated light in the upper section (U), the centralsection (C), and the lower section (L) of the display area 810 in thecomparative example illustrated in FIG. 10 will be described withreference to FIGS. 19 to 24. The comparative example illustrated in FIG.10 is an example in which the irradiated light is uniformed regardlessof the position of the subpixel 825 in the column direction (Ydirection) of the display area 810.

FIG. 19 is a graph comparing spectrums of a principal ray in the uppersection (U) of the display area 810, the light which is inclined fromthe principal ray by −10°, and the light which is inclined from theprincipal ray by +10° according to the comparative example. FIG. 20 is agraph comparing spectrums of the principal ray in the central section(C) of the display area 810, the light which is inclined from theprincipal ray by −10°, and the light which is inclined from theprincipal ray by +10° according to the comparative example. FIG. 21 is agraph comparing spectrums of the principal ray in the lower section (L)of the display area 810, the light which is inclined from the principalray by −10°, and the light which is inclined from the principal ray by+10° according to the comparative example. FIG. 22 is a chromaticitydiagram illustrating chromaticity of the principal ray, the light whichis inclined from the principal ray by −10°, and the light which isinclined from the principal ray by +10° in the upper section (U) of thedisplay area 810 according to the comparative example. FIG. 23 is achromaticity diagram illustrating chromaticity of the principal ray, thelight which is inclined from the principal ray by −10°, and the lightwhich is inclined from the principal ray by +10° in the central section(C) of the display area 810 according to the comparative example. FIG.24 is a chromaticity diagram illustrating chromaticity of the principalray, the light which is inclined from the principal ray by −10°, and thelight which is inclined from the principal ray by +10° in the lowersection (L) of the display area 810 according to the comparativeexample.

As being understood from FIG. 19, the peak wavelength of the irradiatedlight in each subpixel 825 is appropriate for the principal ray in theupper section (U) of the display area 810. Furthermore, as beingunderstood from FIG. 22, irradiated light from the overall pixel 820becomes white color.

As being understood from FIG. 19, in a case where the light is inclinedby −10° from the principal ray in the upper section (U) of the displayarea 810, the shift of the peak wavelength of the irradiated light ineach subpixel 825 is not large but an extraction efficiency of theirradiated light in the red subpixel 825R is lowered. In addition, anextraction efficiency of the irradiated light in the green subpixel 825Gis lowered. However, a degree, in which extraction efficiency of theirradiated light is lowered in the blue subpixel 825B, is small. As aresult, as being understood from FIG. 22, irradiated light of theoverall pixel 820 has reduced red color components and green colorcomponents, and is slightly shifted to a violet color side.

As being understood from FIG. 19, in a case where the light is inclinedby +10° from the principal ray in the upper section (U) of the displayarea 810, the peak wavelength of the irradiated light in the greensubpixel 825G is shifted to a short wavelength side. In addition, theextraction efficiency of the irradiated light is lowered in the redsubpixel 825R and the blue subpixel 825B. As a result, as beingunderstood from FIG. 22, the irradiated light of the overall pixel 820has reduced red color components and is shifted to a blue color side.

As being understood from FIG. 20, the peak wavelength of the irradiatedlight in each subpixel 825 is appropriate for the principal ray in thecentral section (C) of the display area 810. Furthermore, as beingunderstood from FIG. 23, the irradiated light of the overall pixel 820becomes white color.

As being understood from FIG. 20, in a case where the light is inclinedby −10° from the principal ray in the central section (C) of the displayarea 810, the shift of the peak wavelength of the irradiated light ineach subpixel 825 is not large but the extraction efficiency of theirradiated light in the red subpixel 825R is lowered. In addition, theextraction efficiency of the irradiated light is slightly lowered in thegreen subpixel 825G and the blue subpixel 825B. As a result, as beingunderstood from FIG. 23, the irradiated light of the overall pixel 820has reduced red color components and the green color components, and isslightly shifted to the violet color side.

As being understood from FIG. 20, in a case where the light is inclinedby +10° from the principal ray in the central section (C) of the displayarea 810, the shift of the peak wavelength of the irradiated light ineach subpixel 825 is not large. However, the extraction efficiency ofthe irradiated light in the red subpixel 825R is lowered, compared to acase where the light is inclined by −10° from the principal ray. Inaddition, the extraction efficiency of the irradiated light in the greensubpixel 825G and the blue subpixel 825B increases, compared to the casewhere the light is inclined by −10° from the principal ray. However, theextraction efficiency is slightly lowered compared to a case where theprincipal ray is not inclined. As a result, as being understood fromFIG. 23, the irradiated light of the overall pixel 820 has reduced redcolor components and is slightly shifted to the blue color side.

As being understood from FIG. 21, in the lower section (L) of thedisplay area 810, the peak wavelength of the irradiated light in eachsubpixel 825 is appropriate for the principal ray, and, as beingunderstood from FIG. 22, the irradiated light of the overall pixel 820becomes the white color.

As being understood from FIG. 21, in a case where the light is inclinedby −10° from the principal ray in the lower section (L) of the displayarea 810, the green subpixel 825G is shifted to the short wavelengthside. In addition, the blue subpixel 825B is also slightly shifted tothe short wavelength side. In addition, the extraction efficiency islowered in the overall subpixel 825. As a result, as being understoodfrom FIG. 24, the irradiated light of the overall pixel 820 has reducedred color components, green color components, and the blue colorcomponents, and is slightly shifted to the violet color side.

As being understood from FIG. 21, in a case where the light is inclinedby +10° from the principal ray in the lower section (L) of the displayarea 810, the shift of the peak wavelength of the irradiated light inthe subpixels 825 of the respective colors is small. However, theextraction efficiency of the irradiated light in the red subpixel 825Rand the green subpixel 825G is lowered. As a result, as being understoodfrom FIG. 24, the irradiated light of the overall pixel 820 has reducedred color components and green color components, and is slightly shiftedto the blue color side.

As described above, in a case where the width of overlap between thecolor filters 840 is uniformed regardless of the positions of thesubpixels 825 in the column direction (Y direction) of the display area810, it is understood that the chromaticity of the irradiated light ofthe overall pixel 820 is shifted from the white color according to adegree of inclination of the principal ray.

Here, in the embodiment, setting is performed such that the width ofoverlap between the color filters 840 of the respective colors isdifferent according to the positions of the subpixels 825 in the columndirection (Y direction) of the display area 810. FIG. 12 is a viewillustrating the width of overlap between the color filters 840 of therespective colors in the embodiment. As illustrated in FIG. 12, thewidth of overlap is expressed as intervals between end sides, whichextend in the row direction (X direction), of the color filters 840 ofthe respective colors in a plan view and central lines of the banks 217indicated by dotted lines of FIG. 12. In FIG. 12, a width, in which thered color filter 840R overlaps on the upper side of the column direction(Y direction) rather than the central line of the bank 217, is expressedas a width R-on a minus side. A width, in which the red color filter840R overlaps on the lower side of the column direction (Y direction)rather than the central line of the bank 217, is expressed as a width R+on a plus side. A width, in which the green color filter 840G overlapson the upper side of the column direction (Y direction) rather than thecentral line of the bank 217, is expressed as a width G− on a minusside. A width, in which the green color filter 840G overlaps on thelower side of the column direction (Y direction) rather than the centralline of the bank 217, is expressed as a width G+ on a plus side. Awidth, in which the blue color filter 840B overlaps on the upper side ofthe column direction (Y direction) rather than the central line of thebank 217, is expressed as a width B− on a minus side. A width, in whichthe blue color filter 840B overlaps on the lower side of the columndirection (Y direction) rather than the central line of the bank 217, isexpressed as a width B+ on a plus side.

Meanwhile, in FIG. 12, for easy understanding, the positions of therespective color filters in the row direction (X direction) are deviatedand displayed.

FIG. 13 is a table illustrating an example of the width of overlapbetween the color filters 840 of the respective colors according to theembodiment. Although FIG. 13 illustrates the width of overlap inrepresentative three spots of the upper section (U), the central section(C), and the lower section (L) in the column direction (Y direction) ofthe display area 810, actually, the width of overlap is set to aplurality of spots which are further fragmented.

As being understood from FIG. 13, setting is performed such that thewidth R− of the red color filter 840R on the minus side becomes smalleras the red color filter 840R becomes closer to the lower section (L)than the central section (C). On the side of the lower section (L)rather than the central section (C), the principal ray of each of thesubpixels 825 is inclined in the −direction, that is, on the side of thecentral section (C) in the column direction (Y direction) of the displayarea 810. As being understood from FIG. 21, in a case where the light isinclined in the −direction from the principal ray on the side of thelower section (L), the extraction efficiency of the blue subpixel 825Bis lowered. Here, the width R− of the red color filter 840R, whichoverlaps the blue color filter 840B on the side of the lower section (L)rather than the central section (C), on the minus side is reduced,thereby increasing an area in which the blue color filter 840Bfunctions.

As being understood from FIG. 13, setting is performed such that widthR+ of the red color filter 840R on the plus side becomes larger as beingcloser to the lower section (L) than the central section (C). As beingunderstood from FIG. 21, in a case where the light is inclined in the−direction from the principal ray on the side of the lower section (L),there is a tendency that the extraction efficiency of the green subpixel825G is lowered and the extraction efficiency of the red subpixel 825Ris further lowered. Here, on the side of the lower section (L) ratherthan the central section (C), the width R+ of the red color filter 840R,which overlaps the green color filter 840G, on the plus side isincreased, thereby increasing an area in which the red color filter 840Rfunctions.

As being understood from FIG. 13, setting is performed such that thewidth G− of the green color filter 840G on the minus side becomes largeras being closer to the lower section (L) than the central section (C).As being understood from FIG. 21, in a case where the light is inclinedfrom the principal ray in the −direction on the side of the lowersection (L), there is a tendency that the extraction efficiency of thegreen subpixel 825G is lowered. Here, on the side of the lower section(L) rather than the central section (C), the width G− of the green colorfilter 840G, which overlaps the red color filter 840R, on the minus sideis increased, thereby increasing an area in which the green color filter840G functions.

As being understood from FIG. 13, setting is performed such that thewidth G+ of the green color filter 840G on the plus side becomes smalleras the green color filter 840G becomes closer to the upper section (U)than the central section (C), or becomes closer to the lower section (L)than the central section (C). As being understood from FIG. 19, in acase where the light is inclined from the principal ray in the+direction on the side of the upper section (U), the extractionefficiency of the red subpixel 825R is remarkably lowered. Thephenomenon may be understood from FIG. 10. Here, in the embodiment, thewidth G+ of the green color filter 840G, which overlaps the red colorfilter 840R on the side of the upper section (U) rather than the centralsection (C), on the plus side is reduced, thereby increasing the area inwhich the red color filter 840R functions. FIG. 11 illustrates anexample in which the width G− of the green color filter 840G on theminus side is reduced in the upper section (U). As being understoodthrough comparison between FIGS. 10 and 11, even in the case where thelight is inclined from the principal ray in the +direction, the width G−of the green color filter 840G on the minus side is reduced, therebyincreasing the area in which the red color filter 840R functions. Inaddition, as being understood from FIG. 21, in the case where the lightis inclined from the principal ray in the − direction on the side of thelower section (L), the extraction efficiency of the blue subpixel 825Bis remarkably lowered. Here, in the embodiment, the width R+ of thegreen color filter 840G, which overlaps the blue color filter 840B onthe side of the lower section (L) rather than the central section (C),on the plus side is reduced, thereby increasing the area in which theblue color filter 840B functions.

As being understood from FIG. 13, setting is performed such that thewidth B− of the blue color filter 840B on the minus side becomes largeras being closer to the upper section (U) than the central section (C).As being understood from FIG. 19, in the case where the light isinclined from the principal ray in the +direction, there is a tendencythat the extraction efficiency of the green subpixel 825G is not loweredon the side of the upper section (U) but the extraction efficiency ofthe blue subpixel 825B is lowered. The phenomenon may be understood fromFIG. 10. Here, the width B− of the blue color filter 840B, whichoverlaps the green color filter 840G on the side of the upper section(U) rather than the central section (C), on the minus side is increased,thereby increasing the area in which the blue color filter 840Bfunctions. FIG. 11 illustrates an example in which the width B− of theblue color filter 840B on the minus side is increased in the uppersection (U). As being understood through comparison between FIGS. 10 and11, even in the case where the light is inclined from the principal rayin the +direction, the width B− of the blue color filter 840B on theminus side is increased, thereby increasing the area in which the bluecolor filter 840B functions.

As being understood from FIG. 13, setting is performed such that thewidth B+ of the blue color filter 840B on the plus side becomes smalleras being closer to the lower section (L) than the central section (C).As being understood from FIG. 21, on the side of the lower section (L),in the case where the light is inclined from the principal ray in the−direction, the extraction efficiency of the red subpixel 825R isremarkably lowered. Here, in the embodiment, the width B+ of the bluecolor filter 840B, which overlaps the red color filter 840R on the sideof the lower section (L) rather than the central section (C), on theplus side is reduced, thereby increasing the area in which the red colorfilter 840R functions.

In the embodiment illustrated in FIGS. 11 and 13, the shift of theirradiated light in the upper section (U) of the display area 810, thecentral section (C), and the lower section (L) will be described withreference to FIGS. 19 to 30.

FIG. 25 is a graph comparing the spectrums of the principal ray in theupper section (U) of the display area 810 according to the embodiment,the light which is inclined from the principal ray by −10°, and thelight which is inclined from the principal ray by +10°. FIG. 26 is agraph comparing the spectrums of the principal ray in the centralsection (C), the light which is inclined from the principal ray by −10°,and the light which is inclined from the principal ray by +10° in thedisplay area 810 according to the embodiment. FIG. 27 is a graphcomparing the spectrums of the principal ray, the light which isinclined from the principal ray by −10°, and the light which is inclinedfrom the principal ray by +10° in the lower section (L) of the displayarea 810 according to the embodiment. FIG. 28 is a chromaticity diagramillustrating chromaticity of the principal ray, the light which isinclined from the principal ray by −10°, and the light which is inclinedfrom the principal ray by +10° in the upper section (U) of the displayarea 810 according to the embodiment. FIG. 29 is a chromaticity diagramillustrating chromaticity of the principal ray, the light which isinclined from the principal ray by −10°, and the light which is inclinedfrom the principal ray by +10° in the central section (C) of the displayarea 810 according to the embodiment. FIG. 30 is a chromaticity diagramillustrating chromaticity of the principal ray, the light which isinclined from the principal ray by −10°, and the light which is inclinedfrom the principal ray by +10° in the lower section (L) of the displayarea 810 according to the embodiment.

As being understood from FIG. 25, in the upper section (U) of thedisplay area 810, the peak wavelength of the irradiated light in eachsubpixel 825 is appropriate for the principal ray. As being understoodfrom FIG. 28, the irradiated light of the overall pixel 820 becomeswhite color.

As being understood from comparison of FIG. 25 and FIG. 19 whichillustrates the spectrums in the upper section (U) of the display area810 according to the comparative example, in a case in which the lightis inclined from the principal ray by −10°, the extraction efficiency ofthe irradiated light in the blue subpixel 825B is kept low compared tothe comparative example, thereby improving a balance between thesubpixels 825 of the respective colors. As a result, as being understoodthrough comparison of FIG. 28 and FIG. 22 according to the comparativeexample, the amount of shift of white light is reduced in the irradiatedlight of the overall pixel 820.

As being understood through comparison of FIG. 25 and FIG. 19 accordingto the comparative example, in a case where the light is inclined fromthe principal ray by +10°, the amount of shift of the red subpixel 825Rand the extraction efficiency of the irradiated light are improvedcompared to the comparative example. In addition, the amount of shift ofthe green subpixel 825G and the extraction efficiency of the irradiatedlight are improved compared to the comparative example. As a result, asbeing understood through comparison of FIG. 28 and FIG. 22 according tothe comparative example, the amount of shift from white light in theirradiated light of the overall pixel 820 is reduced.

As being understood from FIG. 26, in the central section (C) of thedisplay area 810, the peak wavelength of the irradiated light in eachsubpixel 825 is appropriate for the principal ray. As being understoodfrom FIG. 29, irradiated light of the overall pixel 820 becomes whitecolor.

As being understood through comparison of FIG. 26 and FIG. 20 accordingto the comparative example, in the case where the light is inclined fromthe principal ray by −10°, the extraction efficiency of the irradiatedlight in the blue subpixel 825B is kept low compared to the comparativeexample, thereby improving a balance between the subpixels 825 of therespective colors. As a result, as being understood through comparisonof FIG. 29 and FIG. 23 according to the comparative example, the amountof shift from white light in the irradiated light of the overall pixel820 is reduced.

As being understood through comparison of FIG. 26 and FIG. 20 accordingto comparative example, in the case where the light is inclined from theprincipal ray by +10°, the extraction efficiency of the irradiated lightof the red subpixel 825R is improved compared to the comparativeexample. In addition, the extraction efficiency of the irradiated lightof the green subpixel 825G is kept low compared to the comparativeexample. Furthermore, the extraction efficiency of the irradiated lightof the blue subpixel 825B is kept low compared to the comparativeexample. As a result, a balance between the subpixels 825 of therespective colors is improved. As being understood through comparison ofFIG. 29 and FIG. 23 according to the comparative example, the amount ofshift from white light in the irradiated light of the overall pixel 820is reduced.

As being understood from FIG. 27, in the lower section (L) of thedisplay area 810, the peak wavelength of the irradiated light in eachsubpixel 825 is appropriate for the principal ray. As being understoodfrom FIG. 30, the irradiated light of the overall pixel 820 becomeswhite color.

As being understood through comparison of FIG. 27 and FIG. 21 accordingto the comparative example, in the case where the light is inclined fromthe principal ray by −10°, the extraction efficiency of the irradiatedlight of the red subpixel 825R is high compared to the comparativeexample, thereby improving a balance between the subpixels 825 of therespective colors. As a result, as being understood through comparisonof FIG. 30 and FIG. 24 according to the comparative example, the amountof shift from white light in the irradiated light of the overall pixel820 is reduced.

As being understood through comparison of FIG. 27 and FIG. 21 accordingto the comparative example, in the case the light is inclined from theprincipal ray by +10°, the extraction efficiencies of the irradiatedlight of the red subpixel 825R and the green subpixel 825G are highcompared to the comparative example. In addition, the extractionefficiency of the irradiated light of the blue subpixel 825B is kept lowcompared to the comparative example. As a result, a balance between thesubpixels 825 of the respective colors is improved. As being understoodthrough comparison of FIG. 30 and FIG. 24 according to the comparativeexample, the amount of shift from white light in the irradiated light ofthe overall pixel 820 is reduced.

Meanwhile, FIG. 31 is a graph illustrating the spectrums of theprincipal ray, the light which is inclined from the principal ray by−20°, and the light which is inclined from the principal ray by +20° inthe row direction (X direction) of the display area 810 according to theembodiment. FIG. 32 is a chromaticity diagram illustrating thechromaticity of the principal ray, the light which is inclined from theprincipal ray by −20°, and the light which is inclined from theprincipal ray by +20° in the row direction (X direction) of the displayarea 810 according to the embodiment.

As being understood from FIG. 31, in the row direction (X direction) ofthe display area 810, the peak wavelength of the irradiated light ineach subpixel 825 is appropriate for the principal ray. As beingunderstood from FIG. 32, the irradiated light of the overall pixel 820becomes white color.

As being understood from FIG. 31, in the row direction (X direction) ofthe display area 810, the spectrums of the irradiated light in eachsubpixel 825 show almost the same tendency in the case where the lightis inclined from the principal ray by −20° and the case where the lightis inclined from the principal ray by +20°. In addition, in both cases,the shift of the irradiated light occurs in the green subpixel 825G andthe extraction efficiency of the irradiated light in the red subpixel825R is lowered. However, overall balance is excellent. As a result, asbeing understood from FIG. 32, the irradiated light of the overall pixel820 becomes almost white light even in the case where the light isinclined from the principal ray.

As described above, in the embodiment, the width of overlap between thecolor filters 840 is caused to be different according to the positionsof the subpixels 825 in the column direction (Y direction) of thedisplay area 810. Therefore, it is possible to reduce the shift from thewhite color of the chromaticity of the irradiated light of the overallpixel 820 regardless of the positions of the subpixels 825 in the columndirection (Y direction) of the display area 810. In other words, it ispossible to reduce the shift from the white color of the chromaticity ofthe irradiated light of the overall pixel 820 regardless of the degreeof inclination of the principal ray. As a result, in the columndirection (Y direction) of the display area 810, even in a case wherethe subpixels 825 whose colors are different from each other aredisposed to be arranged, a balance between the colors are excellent, andthus it is possible to improve the viewing angle characteristics.

In addition, in the embodiment, the color filters of the respectivecolors are extended in the row direction (X direction) in which theinclination of the principal ray becomes larger, and thus the colorfilters of the same color are disposed to be arranged in the direction.Therefore, changes in the brightness and the chromaticity according toan angle, in which the electro-optical device 80 is viewed, aresuppressed in the row direction (X direction), and thus it is possibleto improve the viewing angle characteristics.

Modified Example

The invention is not limited to each of the above-described embodiments,and for example, various modifications, which will be described below,are possible. In addition, it is apparent that each embodiment and eachmodified example may be appropriately combined.

(1) In the above-described embodiment, a configuration is described inwhich the color filters of the respective colors are provided to beextended in the row direction (X direction) of the display area 810, andthe color filters of the same color are arranged in the row direction (Xdirection). However, the embodiment is not limited to the configuration.For example, the embodiment may be applied to a configuration in whichthe color filters of the respective colors are provided to be extendedin the column direction (Y direction) of the display area 810 and thecolor filters of the same color are arranged in the column direction (Ydirection). In this case, in the row direction (X direction), thecentral positions of the color filters of the respective colors may bedeviated from the central positions of the light emitting elements inthe respective subpixels. In addition, the width of overlap of therespective color filters in the row direction (X direction) may bedifferent according to the positions of the subpixels in the rowdirection (X direction).

(2) In the above-described embodiment, the order of the subpixels in thecolumn direction (Y direction) is set in order of the red color, thegreen color, and the blue color. However, the embodiment is not limitedto the configuration. Another order may be used as the order of therespective subpixels in the column direction (Y direction). In thiscase, the width of overlap of the respective color filters may beadjusted according to the relationship between the positions of thesubpixels in the column direction (Y direction) and the respective colorfilters.

(3) In the above-described embodiment, an OLED is used as an example ofthe electro-optical material. However, the embodiment is also applied toan electro-optical apparatus which uses an electro-optical materialother than the OLED. The electro-optical material is a material whoseoptical characteristics, such as transmittance and brightness, changedue to supply of an electrical signal (current signal or a voltagesignal). For example, similarly to the embodiment, the invention may beapplied to a display panel which uses a light emitting element, such asa liquid crystal, an inorganic EL or a light emitting polymer. Inaddition, similarly to the embodiment, the invention may be applied toan electrophoresis display panel using a microcapsule, which includescolored liquid and white color particles dispersed in the liquid, as theelectro-optical material. Furthermore, similarly to the embodiment, theinvention may be applied to a twisting-ball display panel using twistingballs, which are painted with different colors for respective areas ofdifferent polarities, as the electro-optical material. Similarly to theembodiment, the invention may be applied to various electro-opticalapparatus such as a toner display panel, which uses black color toner asthe electro-optical material, and a plasma display panel in whichhigh-pressure gas, such as helium and neon, is used as theelectro-optical material.

Application Example

The embodiment may be used in various electronic apparatus. FIGS. 33 to35 illustrate detailed forms of the electronic apparatus which is anapplication target of the embodiment.

FIG. 33 is a perspective view illustrating an appearance of ahead-mounted display as the electronic apparatus which uses theelectro-optical apparatus of the embodiment. As illustrated in FIG. 33,the head-mounted display 300 includes externally temples 310, a bridge320, and projection optical systems 301L and 301R similarly to generalglasses. Although not illustrated in the drawing, a left eyeelectro-optical device 80 and a right eye electro-optical device 80 areprovided on the back sides of the projection optical systems 301L and301R in the vicinity of the bridge 320.

FIG. 34 is perspective view illustrating a portable personal computerwhich uses the electro-optical apparatus. A personal computer 2000includes an electro-optical device 80 that displays various images, anda main body section 2010 provided with a power switch 2001 and akeyboard 2002.

FIG. 35 is a perspective view illustrating a mobile phone. The mobilephone 3000 includes a plurality of manipulation buttons 3001, scrollbuttons 3002, and an electro-optical device 80 which displays variousimages. A screen, which is displayed on the electro-optical device 80,is scrolled by manipulating the scroll buttons 3002. The embodiment maybe applied to the mobile phone.

Meanwhile, a Personal Digital Assistants (PDA) is exemplified as theelectronic apparatus, to which the embodiment is applied, in addition tothe apparatuses illustrated in FIG. 1 and FIGS. 33 to 35. In additionthereto, a digital-still camera, a television, a video camera, anavigation apparatus, a display device for a vehicle (inner panel), anelectronic organizer, electronic paper, an electronic calculator, a wordprocessor, a work station, a video phone, and a POS terminal may beexemplified. Furthermore, an apparatus which includes a printer, ascanner, a copy machine, a video player, and a touch panel, or the likemay be exemplified.

The entire disclosure of Japanese Patent Application No. 2016-026413,filed Feb. 15, 2016 is expressly incorporated by reference herein.

What is claimed is:
 1. An electro-optical apparatus comprising: a firstlight emitting element; a first color filter; a second light emittingelement; a second color filter; a third color filter disposed to overlapthe first color filter in a first direction in plan view; a fourth colorfilter disposed to overlap the second color filter in the firstdirection in plan view, wherein a central position of the first colorfilter is deviated from a central position of the first light emittingelement in the first direction, wherein a central position of the secondcolor filter coincides with a central position of the second lightemitting element in the first direction, and wherein a first overlapwidth of the first color filter and the third color filter is differentfrom a second overlap width of the second color filter and the fourthcolor filter.
 2. The electro-optical apparatus according to claim 1,further comprising: a third light emitting element; a fifth colorfilter; and a sixth color filter disposed to overlap the third colorfilter in the first direction in plan view, wherein a central positionof the fifth color filter is deviated from a central position of thethird light emitting element in the first direction.
 3. Theelectro-optical apparatus according to claim 2, wherein the second colorfilter is disposed between the first color filter and the fifth colorfilter.
 4. The electro-optical apparatus according to claim 3, whereinthe third color filter is disposed between the first color filter andthe second color filter, wherein the fourth color filter is disposedbetween the second color filter and the fifth color filter, and whereinthe fifth color filter is disposed between the fourth color filter andthe sixth color filter.
 5. The electro-optical apparatus according toclaim 4, wherein a third overlap width of the fifth color filter and thesixth color filter is different from the second overlap width of thesecond color filter and the fourth color filter.
 6. The electro-opticalapparatus according to claim 5, wherein the first color filter, thesecond color filter, and the fifth color filter are red color filters,wherein the third color filter, the fourth color filter, and the sixthcolor filter are green color filters, and wherein the third overlapwidth is smaller than the first overlap width.
 7. The electro-opticalapparatus according to claim 5, wherein the first color filter, thesecond color filter, and the fifth color filter are green color filters,wherein the third color filter, the fourth color filter, and the sixthcolor filter are blue color filters, and wherein the third overlap widthis larger than the first overlap width.
 8. The electro-optical apparatusaccording to claim 5, wherein the first color filter, the second colorfilter, and the fifth color filter are blue color filters, wherein thethird color filter, the fourth color filter, and the sixth color filterare red color filters, and wherein the third overlap width is smallerthan the first overlap width.
 9. An electronic apparatus comprising theelectro-optical apparatus according to claim
 1. 10. An electronicapparatus comprising the electro-optical apparatus according to claim 2.11. An electronic apparatus comprising the electro-optical apparatusaccording to claim
 3. 12. An electronic apparatus comprising theelectro-optical apparatus according to claim
 4. 13. An electronicapparatus comprising the electro-optical apparatus according to claim 5.14. An electronic apparatus comprising the electro-optical apparatusaccording to claim
 6. 15. An electronic apparatus comprising theelectro-optical apparatus according to claim
 7. 16. An electronicapparatus comprising the electro-optical apparatus according to claim 8.